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Linux Administration

Moving Volume Group in Linux
Linux / Linux Administration / Linux Advanced Commands / Linux Commands / LVM

How to move a Volume Group from one system to another

February 25, 2023February 25, 2023 - by Jayabal Thiyagarajan - Leave a Comment

There are situations where we would be required to move a whole volume group from one system to another system for some requirement. As part of this, it also moves …

How to move a Volume Group from one system to another Read More
Removing SAN disk or Storage Device (LUN) from Linux
Linux / Linux Administration / Linux Commands

Six Simple Steps to Remove a Storage Device (LUN) from Linux

February 19, 2023February 20, 2023 - by Prakash Subramanian - 1 Comment

There are situations where a storage device or LUN must be removed from running system without any issue. This happens for a variety of reasons, but most commonly, when the …

Six Simple Steps to Remove a Storage Device (LUN) from Linux Read More
How to Resize an Online Multipath Device on Linux
Linux / Linux Administration / Linux Advanced Commands / Linux Commands

How to Resize an Online Multipath Device on Linux

September 25, 2022February 25, 2023 - by Rasool Cool - Leave a Comment

Disk space on Linux can be expanded by adding a new LUN or resizing an existing LUN on the system. In most cases, the online resizing of the multipath device …

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How to Mapping Linux Block Devices to Storage LUNs
Linux Administration / Linux Basic / Linux Commands

How to Find SAN disk LUN id in Linux

May 25, 2022December 10, 2022 - by Vinoth Kumar - 2 Comments.

In some cases, you may need to find a block device mapped against a logical unit number (LUNs) for filesystem (FS) expansion or disaster recovery (DR) activity. Also, this information …

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How to Resize Existing LUN/Disk on Linux
Linux Administration / Linux Advanced Commands

How to Resize Existing SAN Disk on Linux

May 16, 2022December 10, 2022 - by Prakash Subramanian - Leave a Comment

In most cases, disk space can be expanded by adding a new LUN or SAN disk to the system. But in some scenario, you may need to resize the existing …

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Repairing XFS File System in RHEL
Linux Administration / Red Hat / Red Hat Enterprise Linux / RHEL / xfs filesystem

How to Check and Repair XFS Filesystem in RHEL

December 15, 2021May 16, 2022 - by Magesh Maruthamuthu - 3 Comments.

xfs_repair command repairs corrupt or damaged XFS filesystems. It’s highly scalable, high-performance and is designed to effectively repair even very large file systems with many inodes. Unlike other Linux file …

How to Check and Repair XFS Filesystem in RHEL Read More
Repairing EXT4 Filesystem in Linux
fsck / Linux Administration / Linux Commands / LVM

How to Check and Repair EXT4 Filesystem in Linux

December 13, 2021December 13, 2021 - by Magesh Maruthamuthu - 3 Comments.

The fsck (stands for File System Consistency Check) is used to check and repair one or more Linux filesystems. This check will run automatically at boot time when a filesystem …

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How to Remove Multiple Files at once on Linux
Linux Administration / Linux Basic / Linux Commands

How to Remove Multiple Files at once on Linux

December 6, 2021December 7, 2021 - by Magesh Maruthamuthu - Leave a Comment

Deleting (or removing) a file in Linux from the command line can be done using the rm command. It allows you to delete more than one files at once. Also, …

How to Remove Multiple Files at once on Linux Read More
FAQ / Linux Administration / Linux Basic / Linux Commands

Linux tee command with examples

July 14, 2021July 14, 2021 - by Magesh Maruthamuthu - Leave a Comment

The tee command reads standard input (stdin) and writes the result to standard output (stdout) and one or more files simultaneously. It basically displays the command output on the terminal …

Linux tee command with examples Read More
Linux Administration / Linux Service Command / systemd

How to modify an existing systemd unit file

July 8, 2021July 8, 2021 - by Magesh Maruthamuthu - 3 Comments.

In this example, we will show how to modify an existing unit file. There are three main directories where unit files are stored on the system but the ‘/etc/systemd/system/’ directory …

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Recent Posts

  • How to move a Volume Group from one system to another February 25, 2023
  • Six Simple Steps to Remove a Storage Device (LUN) from Linux February 19, 2023
  • How to Resize an Online Multipath Device on Linux September 25, 2022
  • How to Find SAN disk LUN id in Linux May 25, 2022
  • How to Resize Existing SAN Disk on Linux May 16, 2022

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